Andy - you definitely are in for a treat! My son was eating oysters at 2, artichokes about then too. You name it, he had it before he was 4. Chicken liver was the best "steak" he had ever had right next to that other steak (lamb). The other night he came home about midnight and got out some snacks - I heard him say "I love my Mom, I love my Mom" - his snack was whole wheat grilled baguette, goat cheese, pesto, and sundried tomatoes. He LOVES flavor and is up to try anything, which makes things pleasant for me - because I don't cook "picky" very well.
My best advice for you right now Andy is save your pennies - for some reason good, fresh food costs a bundle!!!!!!!
He is sooooooooo lucky to have you - and you him, for sure!!!!!! It brings a huge smile to my face.
My favorite picture GB posted is of Rachel gnawing on a rib in her highchair!!!!!!!